Smith was making a new comedy special, filming two comedy sets at Glendale, California's Alex Theatre, when he began to feel ill. After wrapping the earlier 6:00 pm performance, he canceled the second show – a decision he said saved his life.

“I would have died tonight,” he said on Twitter early Monday morning. “But for now, I’m still above ground!”

After the first show this evening, I had a massive heart attack. The Doctor who saved my life told me I had 100% blockage of my LAD artery (aka “the Widow-Maker”). If I hadn’t canceled show 2 to go to the hospital, I would’ve died tonight. But for now, I’m still above ground! pic.twitter.com/M5gSnW9E5h